Research Topics
Genomes and Genes
| Lih Shen ChinSummaryAffiliation: Emory University Country: USA Publications
Research Grants
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Detail Information
Publications
Parkin-mediated ubiquitin signalling in aggresome formation and autophagyLih Shen Chin
Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
Biochem Soc Trans 38:144-9. 2010..The present review summarizes the current knowledge of the aggresome-autophagy pathway, its regulation by parkin-mediated Lys(63)-linked polyubiquitination, and its dysfunction in neurodegenerative diseases...
Regulation of synaptophysin degradation by mammalian homologues of seven in absentiaTiffany C Wheeler
Department of Pharmacology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina 27599, USA
J Biol Chem 277:10273-82. 2002..Our findings indicate that Siah proteins function as E3 ubiquitin-protein ligases to regulate the ubiquitination and degradation of synaptophysin...
Oxidative modifications and down-regulation of ubiquitin carboxyl-terminal hydrolase L1 associated with idiopathic Parkinson's and Alzheimer's diseasesJoungil Choi
Department of Pharmacology, Center for Neurodegenerative Disease, Emory University School of Medicine, 1510 Clifton Road, Atlanta, GA 30322, USA
J Biol Chem 279:13256-64. 2004..Together, these results provide evidence supporting a direct link between oxidative damage to the neuronal ubiquitination/de-ubiquitination machinery and the pathogenesis of sporadic AD and PD...
Spongiform neurodegeneration-associated E3 ligase Mahogunin ubiquitylates TSG101 and regulates endosomal traffickingBong Yoon Kim
Department of Pharmacology, Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA 30322, USA
Mol Biol Cell 18:1129-42. 2007..Our findings support a role for Mahogunin in a proteasome-independent ubiquitylation pathway and suggest a link between dysregulation of endosomal trafficking and spongiform neurodegeneration...
Huntingtin-associated protein 1 interacts with hepatocyte growth factor-regulated tyrosine kinase substrate and functions in endosomal traffickingYankun Li
Department of Pharmacology, Emory University School of Medicine, Atlanta, Georgia 30322 3090, USA
J Biol Chem 277:28212-21. 2002..These findings implicate, for the first time, the involvement of HAP1 in the regulation of vesicular trafficking from early endosomes to the late endocytic compartments...
Phosphorylation of parkin by Parkinson disease-linked kinase PINK1 activates parkin E3 ligase function and NF-kappaB signalingDi Sha
Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
Hum Mol Genet 19:352-63. 2010..Our findings support a direct link between PINK1-mediated phosphorylation and parkin-mediated ubiquitin signaling and implicate the deregulation of the PINK1/parkin/NF-kappaB neuroprotective signaling pathway in the pathogenesis of PD...
Mutations associated with Charcot-Marie-Tooth disease cause SIMPLE protein mislocalization and degradation by the proteasome and aggresome-autophagy pathwaysSamuel M Lee
Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
J Cell Sci 124:3319-31. 2011....
Oxidative damage of DJ-1 is linked to sporadic Parkinson and Alzheimer diseasesJoungil Choi
Department of Pharmacology, Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, Georgia 30322, USA
J Biol Chem 281:10816-24. 2006..Our study provides new insights into the oxidative modifications of DJ-1 and indicates association of oxidative damage to DJ-1 with sporadic PD and AD...
GRIF1 binds Hrs and is a new regulator of endosomal traffickingElizabeth Kirk
Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
J Cell Sci 119:4689-701. 2006..Our findings suggest that GRIF1 may also participate in microtubule-based transport of early endosomes by acting as an adaptor linking Hrs-containing endosomes to kinesin...
Parkinson disease protein DJ-1 converts from a zymogen to a protease by carboxyl-terminal cleavageJue Chen
Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322 3090, USA
Hum Mol Genet 19:2395-408. 2010..Our findings support a role for DJ-1 protease in cellular defense against oxidative stress and have important implications for understanding and treating PD...
Parkin-mediated K63-linked polyubiquitination targets misfolded DJ-1 to aggresomes via binding to HDAC6James A Olzmann
Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
J Cell Biol 178:1025-38. 2007....
Hypertonia-associated protein Trak1 is a novel regulator of endosome-to-lysosome traffickingElizabeth Webber
Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322 4218, USA
J Mol Biol 382:638-51. 2008..Our findings support a role for Trak1 in the regulation of Hrs-mediated endosomal sorting and have important implications for understanding hypertonia associated with neurological disorders...
Ubiquitination of alpha-synuclein by Siah-1 promotes alpha-synuclein aggregation and apoptotic cell deathJames T Lee
Department of Pharmacology, Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA 30322 3090, USA
Hum Mol Genet 17:906-17. 2008..Our findings suggest that Siah-1-mediated alpha-synuclein ubiquitination may play a critical role in Lewy body formation and PD pathogenesis...
Parkin-mediated K63-linked polyubiquitination: a signal for targeting misfolded proteins to the aggresome-autophagy pathwayJames A Olzmann
Department of Pharmacology, Emory University School of Medicine, Atlanta, Georgia 30322 3090, USA
Autophagy 4:85-7. 2008..Our findings provide insight into the mechanisms underlying aggresome formation and suggest that parkin and K63-linked polyubiquitination may play a role in the autophagic clearance of misfolded proteins...
Selective enrichment of DJ-1 protein in primate striatal neuronal processes: implications for Parkinson's diseaseJames A Olzmann
Department of Pharmacology, Emory University, Atlanta, Georgia 30322, USA
J Comp Neurol 500:585-99. 2007..Together, these findings indicate neuronal and synaptic expression of DJ-1 in primate subcortical brain regions and suggest a physiological role for DJ-1 in the survival and/or function of nigral-striatal neurons...
Staring, a novel E3 ubiquitin-protein ligase that targets syntaxin 1 for degradationLih Shen Chin
Department of Pharmacology, Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, Georgia 30322 3090, USA
J Biol Chem 277:35071-9. 2002..These findings suggest that Staring is a novel E3 ubiquitin-protein ligase that targets syntaxin 1 for degradation by the ubiquitin-proteasome pathway...
The ubiquitin-proteasome system in spongiform degenerative disordersBRANDI R WHATLEY
Department of Pharmacology and Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA 30322, USA
Biochim Biophys Acta 1782:700-12. 2008....
Charcot-Marie-Tooth disease-linked protein SIMPLE functions with the ESCRT machinery in endosomal traffickingSamuel M Lee
Department of Pharmacology and Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA 30322, USA
J Cell Biol 199:799-816. 2012..Our findings indicate a function of SIMPLE as a regulator of endosomal trafficking and provide evidence linking dysregulated endosomal trafficking to CMT pathogenesis...
Protein misfolding and clearance in demyelinating peripheral neuropathies: Therapeutic implicationsSamuel M Lee
Department of Pharmacology, Emory University School of Medicine, Atlanta, GA USA
Commun Integr Biol 5:107-10. 2012..These studies suggest that targeting protein quality control systems involved in cytoprotection against CMT-associated misfolded proteins could have therapeutic benefits for treating demyelinating CMT...
Proteomic analysis reveals Hrs ubiquitin-interacting motif-mediated ubiquitin signaling in multiple cellular processesJulia W Pridgeon
Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
FEBS J 276:118-31. 2009....
TorsinA protein degradation and autophagy in DYT1 dystoniaLisa M Giles
Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322 3090, USA
Autophagy 5:82-4. 2009....
Ubiquitin C-terminal hydrolase l1 in tumorigenesisJennifer Hurst-Kennedy
Department of Pharmacology and Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA 30322, USA
Biochem Res Int 2012:123706. 2012..In this paper, we provide an overview of the evidence supporting the involvement of UCH-L1 in tumor development and discuss the potential mechanisms of action of UCH-L1 in oncogenesis...
Conditional knock-out of Kir4.1 leads to glial membrane depolarization, inhibition of potassium and glutamate uptake, and enhanced short-term synaptic potentiationBiljana Djukic
Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
J Neurosci 27:11354-65. 2007..1 cKO hippocampus. Our findings implicate a role for glial Kir4.1 channel subunit in the modulation of synaptic strength...
PINK1 protects against oxidative stress by phosphorylating mitochondrial chaperone TRAP1Julia W Pridgeon
Department of Pharmacology, Emory University School of Medicine, Atlanta, Georgia, United States of America
PLoS Biol 5:e172. 2007..Our findings suggest a novel pathway by which PINK1 phosphorylates downstream effector TRAP1 to prevent oxidative-stress-induced apoptosis and implicate the dysregulation of this mitochondrial pathway in PD pathogenesis...
Research Grants
- Molecular analysis of DJ-1 function and dysfunctionLih Shen Chin; Fiscal Year: 2007..Completion of the proposed project should advance our understanding of PD pathogenesis, and accelerate the efforts to discover curative therapies for PD and related neurodegenerative disorders. ..
- Molecular analysis of DJ-1 function and dysfunctionLih Shen Chin; Fiscal Year: 2010..Completion of the proposed project should advance our understanding of PD pathogenesis, and accelerate the efforts to discover curative therapies for PD and related neurodegenerative disorders. ..
- A Novel Ubiquitin-Dependent Pathogenic Pathway in Spongiform NeurodegenerationLih Shen Chin; Fiscal Year: 2010..The results of the proposed studies will provide fundamental information needed for the development of effective therapeutics to combat age-related neurodegenerative diseases. ..
